RGB LED disco light is a simple project designed around PIC16F72 microcontroller. This firmware is a RGB driver, as name suggests it is used to derive or light red, green and blue LEDs in particular fashion. Its main feature is the pattern shown on LEDs. It is quite difficult to describe pattern in words but […]
RGB LED Disco Lights Continue Reading
UPDATE: V1.1 of clock packages uploaded for compatibility with latest IDEs. Video at:: http://youtu.be/ikNw1iLE9vg Alarm demo video: http://youtu.be/jlZBCuQeswA This is an OLED alarm clock I built using an Arduino Micro, a tiny OLED 128×64 display using the SSD1306 controller and I2C interface, and a precision DS3231-based real-time clock module with rechargeable battery backup. It features
DS3231 OLED alarm clock with 2-button menu setting and temperature display Continue Reading
Despite a low power consumption this relay handles 5A/250VAC while maintaining a considerably long lifetime. If we should mark an electronic component by a term “sympathic For more detail: Slim, humble and long-age – this is the Fujitsu FTR-MY relay
Slim, humble and long-age – this is the Fujitsu FTR-MY relay Continue Reading
In a bid to encourage greater use of TI’s Programmable Real-time Unit (PRU) built into the Sitara AM335x and AM437x family of devices which power the BeagleBone Black development board Texas have announced the PRU cape. The PRU is made up of dual 200 MHz coprocessors, implementing a low-latency subsystem optimized for deterministic, real-time processing allowing
The Texas PRU Cape Continue Reading
I’ve start building multicopters (or drones if you like it better) five months ago! My first one was a scratch build tricopter based on a KK2.1.5 flight controller and three DT750 motors. Everything was made out of plywood and pinewood! It held excellent if you consider that I was a newbie pilot (still I am)
Making a Quadcopter Using Arduino Continue Reading
Smoke detector is a device incorporated on fire alarm system; it is usually installed on buildings to alarm the occupants when there is a fire (when there’s smoke, there’s fire). This provides the crucial early warning to escape injury or death in fire. This project uses optical method design; the sensing part is the photo
Photoelectric Smoke Detector Continue Reading
We could often feel frustrated when programming using the Arduino IDE. Why? Not because of how many errors we encounter in the program, but it is so difficult to find out the errors in source code, which is really something freaking out. For example Arduino IDE does not seem to display the number of rows,
Use Sublime Text 2 to Replace Arduino IDE Continue Reading
Most Arduino SPI tutorials show this simple but poor SPI bus design: A much better SPI bus design can prevent conflicts. 3 simple improvements are needed: Use pullup resistors on all chip select signals. Verify tri-state behavior on MISO: use a tri-state buffer chip if necessary. Protect bus access with SPI.beginTransaction(settings) and SPI.endTransaction(). Click “Read
Better SPI Bus Design in 3 Steps Continue Reading
The MX100T from Aim-TTi (Aim Thurlby Thandar) is a 315W precision laboratory power supply’s three outputs can each provide 0 to 35 V at 0 to 3 A. Range switching extends the capabilities so that outputs can be set to 16 V/6 A or 70 V/1.5 A for maximum versatility; where higher power is needed
Triple output lab power supply offers paralleling & tracking Continue Reading
This project is to build a portable GPS geared towards runners (well, me and what I think a runner wants a GPS thingy for). It’s sponsored by the University of Minnesota’s ECE Envision Fund. The hardware is basically complete, and the software is functional, if not polished. This is what the main screen looks like while
Runner’s GPS build Continue Reading
